Replacement 23T Aluminium Servo Arm for Kyosho KM023TM by GPM  [KM023TM]

Durable 23T Aluminium Servo Arm for Scale Motorbikes

This aluminium servo arm is a scale replacement crafted for Kyosho motorcycle models that use the 23T (C9) spline. Aluminium construction increases rigidity over standard plastic horns and creates a firmer mount between the servo output and the control linkage on model bikes.

Ensure your servo uses the 23T (C9) spline prior to installation. The fitting process is straightforward: remove the stock horn, align the 23T spline to the servo output, secure with the original retaining screw, and connect the linkage. Keep the original hardware and apply moderate torque to protect the spline teeth.

In practical tuning, an aluminium arm reduces flex and helps maintain repeatable steering and throttle behaviour. It is ideal where a more direct control feel and stable linkage geometry are required, for instance when adjusting steering centring or throttle return. Remember that the stiffer arm may increase load on the servo, so match it to a suitable torque-rated servo.